Vik noted the silent order from Shar to keep the perimeter. Though it seemed easy guard the perimeter when there were limited avenues of approach, at this point he expected anything his immagination would come up with. So, with the idea of something crawling out of the walls, floor or ceiling, he kept his eyes scanning over every molecule he could.
With the idea of concealing himself, Vik stepped aside and into one of the areas of the cave where his team was less clustered. This ended with him on the left side of the entrance he'd emerged into the cave from with his right shoulder pointed toward the skull, the rifle pressed into his left shoulder. Technically, his back was to the entrance he was closest to, but with his eyes trailing over just about everything in the cave for a sign of the unusual, perhaps anything sneaking up on the kit would find a nasty surprise.